<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
    <script type="text/javascript">
        const bytes = [104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100];
        const buffer = new Uint8Array(bytes.length);
        for (let i = 0; i < buffer.length; i += 1) {
            buffer[i] = bytes[i];
        }
        const blob = new Blob([buffer], {type: "text/plain"});
        const reader = new FileReader();
        reader.addEventListener("load", function(evt) {
            const result = evt.target.result;
            console.log("result", result);
        }); 
        reader.addEventListener("error", function(evt) {reject(evt.target.error);}); 
        reader.readAsText(blob, "utf-8");
    </script>
</body>
</html>
